Micro Coaxial Cable Connectors

Micro Coaxial Cable Connectors

Micro coaxial cable connectors have excellent transmission characteristics and are used in devices that requires compact housing and high-speed transmission.


We produce the industry’s best board-to-cable micro coaxial cable connectors at KEL

  • Superb transmission characteristics for compact housing in small devices.
  • High-level noise suppression for device miniaturization.
  • We are ISO9001/14001 and IATF16949 certified and registered.
  • Chosen by top manufacturers for use cases where stable connections are crucial, like broadcast cameras, security cameras, and other high-level imaging equipment and medical equipment.
  • Proudly made in Japan.

From the details page for any of our products, you can inquire samples and download 3D-CAD files, mating lists, brochures, and technical drawings.


USL Series

USL Series

0.4 mm Pitch, Insulation-displacement connector (IDC)

The USL series is a 0.4 mm pitch insulation-displacement connector for micro coaxial cables (AWG#42). Bulk connection by pressure welding improves the connection reliability and makes the connector compact.

  • Improved connection reliability and compact size by pressure welding
  • Contributes to the miniaturization of devices
  • Mated Height: 1.0 mm; Mating width: 5.6 mm
  • Effective Mating Length: 0.5 mm
  • Applicable cable: AWG#42

USLS Series

USLS Series

Low Profile Stack Mating Type

Our USLS series is a stack type, 0.4 mm pitch micro coaxial cable connector.

  • Compact connector with a low profile
  • Easy stack mating
  • Lead free due to insulation-displacement connector (IDC)
  • Mated Height: 1.65 mm; Mating Width: 3.05 mm
  • Effective Mating Length: 0.35 mm
  • Applicable cable : AWG#42

XSLS Series

XSLS Series

0.25 mm Pitch, Stack Mating, Ultra-Compact

Our XSLS Series is the industry’s most miniature connector with a 0.25 mm pitch and stack mating, which saves more space on the board.

  • The bottom surface of the connector is covered with resin, which allows wiring patterns directly under the connector
  • Soldering type for stable and reliable connection
  • Mated Height: 1.44 mm; Mating Width: 3.05 mm
  • Effective Mating Length: 0.1 mm
  • Applicable cable : AWG#42/44/46

SSL Series

SSL Series

0.5mm Pitch, Insulation-displacement connector (IDC)

Our SSL series is a 0.5 mm pitch micro coaxial cable connector. Its pressure welding connection ensures superior reliability and compactness.

  • Vertical and horizontal mating available
  • Metal shell for noise reduction and product strength
  • Mated Height: 1.4 mm; Mating Width: 6.08 mm (horizontal mating)
  • Effective Mating Length: 0.5 mm
  • Applicable cable : AWG#40

TSL Series

TSL Series

0.55mm Pitch, 32 Gbps High-Speed Transmission
Next-Generation Harness

Our TSL Series is a harness that enables 32 Gbps high-speed differential transmission at 1,000 mm length. The connector design is optimized to achieve high-speed transmission over long wires for 5G, IoT, and AI.

  • Low loss and low skew in combination with new Ruota* high-performance coaxial cables
  • 32 Gbps high-speed differential transmission at harness length 1,000 mm
  • Mated Height: 3.25 mm; Mating Width: 10.68 mm (horizontal mating)
  • Effective Mating Length: 0.5 mm
  • Applicable cable : AWG#30/32/36

* Ruota is a registered trademark (no. 5594596) of Totoku Electric Co., Ltd.

Why KEL

Flexible Customization & Consultation

Flexible Customization & Consultation

Renowned for industry-leading expertise in floating connectors, we can assist you through the entire process of creating custom solutions. We have many years of experience in connector peripheral development, design, and manufacturing.

Top-Quality Products Made in Japan

Top-Quality Products Made in Japan

A fully automated production line for floating connectors is now in operation with a Class 100,000 cleanroom at our plant located in Japan’s Yamanashi Prefecture.

ISO & IATF Certified

ISO & IATF Certified

We are ISO9001/14001 and IATF16949 certified and registered.

Custom Solutions

Custom Solutions

With technology cultivated over 60 years, we pursue miniature, reliable and high functionality

Transmission Simulation

Transmission Simulation Data

Our development department can replicate similar customer conditions and provide you with accurate simulation data.

Custom Harness Support

Custom Harness Support

KEL develops custom-made harnesses to meet your specifications.